[INFO] fetching crate combos 0.2.1...
[INFO] checking combos-0.2.1 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] extracting crate combos 0.2.1 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate combos 0.2.1 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate combos 0.2.1
[INFO] finished tweaking crates.io crate combos 0.2.1
[INFO] tweaked toml for crates.io crate combos 0.2.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate combos 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fc407187fe206b994344e254a66db76254d7b7bf864c765cda21f82f7dfa138c
[INFO] running `Command { std: "docker" "start" "-a" "fc407187fe206b994344e254a66db76254d7b7bf864c765cda21f82f7dfa138c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fc407187fe206b994344e254a66db76254d7b7bf864c765cda21f82f7dfa138c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc407187fe206b994344e254a66db76254d7b7bf864c765cda21f82f7dfa138c", kill_on_drop: false }`
[INFO] [stdout] fc407187fe206b994344e254a66db76254d7b7bf864c765cda21f82f7dfa138c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 939f2e8a43a20a89953fef6e10a62b505787427979c44a71739ccc0c5e030dad
[INFO] running `Command { std: "docker" "start" "-a" "939f2e8a43a20a89953fef6e10a62b505787427979c44a71739ccc0c5e030dad", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking combos v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "939f2e8a43a20a89953fef6e10a62b505787427979c44a71739ccc0c5e030dad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "939f2e8a43a20a89953fef6e10a62b505787427979c44a71739ccc0c5e030dad", kill_on_drop: false }`
[INFO] [stdout] 939f2e8a43a20a89953fef6e10a62b505787427979c44a71739ccc0c5e030dad
[INFO] checking combos-0.2.1 against try#f9935d29d867449445ee008640ccca1bf1ae0889+rustflags=-Dtail_expr_drop_order for crater-rollup-uwu
[INFO] extracting crate combos 0.2.1 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate combos 0.2.1 on toolchain f9935d29d867449445ee008640ccca1bf1ae0889
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate combos 0.2.1
[INFO] finished tweaking crates.io crate combos 0.2.1
[INFO] tweaked toml for crates.io crate combos 0.2.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate crates.io crate combos 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3c33749d6607d0b4beda09f74546cb76ca767208ae5c877e5fc5ea1fcec8621d
[INFO] running `Command { std: "docker" "start" "-a" "3c33749d6607d0b4beda09f74546cb76ca767208ae5c877e5fc5ea1fcec8621d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c33749d6607d0b4beda09f74546cb76ca767208ae5c877e5fc5ea1fcec8621d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c33749d6607d0b4beda09f74546cb76ca767208ae5c877e5fc5ea1fcec8621d", kill_on_drop: false }`
[INFO] [stdout] 3c33749d6607d0b4beda09f74546cb76ca767208ae5c877e5fc5ea1fcec8621d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dtail_expr_drop_order" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 80ca4c567dbba5b1555f653cd1a9792c83995366c52112b802b31029071a43fd
[INFO] running `Command { std: "docker" "start" "-a" "80ca4c567dbba5b1555f653cd1a9792c83995366c52112b802b31029071a43fd", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking combos v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 8  |   fn lines_from_file(filename: impl AsRef<Path>) -> Vec<String> {
[INFO] [stdout]    |                      -------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 9  |       let f = File::open(filename).expect("No such file");
[INFO] [stdout]    |           - these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 10 |       let br = BufReader::new(f);
[INFO] [stdout]    |           -- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 11 | /     br.lines()
[INFO] [stdout] 12 | |         .map(|l| l.expect("Could not parse line"))
[INFO] [stdout]    | |__________________________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout]    = note: requested on the command line with `-D tail-expr-drop-order`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 8  |   fn lines_from_file(filename: impl AsRef<Path>) -> Vec<String> {
[INFO] [stdout]    |                      -------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 9  |       let f = File::open(filename).expect("No such file");
[INFO] [stdout]    |           - these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 10 |       let br = BufReader::new(f);
[INFO] [stdout]    |           -- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 11 | /     br.lines()
[INFO] [stdout] 12 | |         .map(|l| l.expect("Could not parse line"))
[INFO] [stdout]    | |__________________________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout]    = note: requested on the command line with `-D tail-expr-drop-order`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `combos` (bin "combos" test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `combos` (bin "combos") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "80ca4c567dbba5b1555f653cd1a9792c83995366c52112b802b31029071a43fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80ca4c567dbba5b1555f653cd1a9792c83995366c52112b802b31029071a43fd", kill_on_drop: false }`
[INFO] [stdout] 80ca4c567dbba5b1555f653cd1a9792c83995366c52112b802b31029071a43fd